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What are the causes of the dynamic of the Earth crust?

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Underneath the crust of the Earth is the mantle. The rock of which the mantle is composed is iron-rich and magnesium-rich silicates. At the pressures and temperatures of the mantle, these silicates exhibit what we call plastic flow. read more

Oceanic crust is much thinner (typically 4 – 5 miles thick) and heavier than continental crust, which can range from 21 to nearly 30 miles thick. Internal structure of the Earth showing both compositional (core, mantle and crust) and physical layers (lithosphere and asthenosphere). read more

Start studying EARTH SCIENCE - Dynamic Crust. Learn vocabulary, terms, and more with flashcards, games, and other study tools. read more

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Movement Of The Earth’S Crust
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